Arduino and PlatformIO IDE compatible TFT library
STM32 core support for Arduino
Serial Bootloader for Microchip, Atmel, NXP, TI, 8051 microcontrolers
ESP8266 framework for Homie, a lightweight MQTT convention
A Java VM for ARDUINO and other micros using the leJOS runtime.
Matlab interface to the Open Dynamics Engine (ODE)